p144-153 questions and answers

p144-153 questions and answers - Joseph Leonard p144-153...

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Joseph Leonard – 1/22/08 – p144-153 questions and answers Questions 1. 145 – 1 How many pairs of nucleotides does human DNA consist of? 2. 145 – 2 What happens to DNA during cell division in eukarotic cells? 3. 145 – 2 What are these structures known as? 4. 145 – 3 What are histones? 5. 145 – 3 What do histones do? 6. 145 – 3 What are nonhistone proteins generally involved in? 7. 146 – 1 What is a chromatid? 8. 146 – 1 What is a centryome? 9. 146 – 5 Which chromosomes determine the sex of an organism? 10. 146 – 5 What are all other chromosomes in an organism? 11. 146 – 6 What are homologous chromosomes? 12. 147 – 1 What is a photomicrograph of a chromosome? 13. 147 – 2 What are cells with two sets of chromosomes known as? 14. 147 – 3 What are human sperm cells and egg cells? 15. 148 – 2 What is binary fission? 16. 148 – 4 In mitosis, is the offspring genetic material identical? 17. 148 – 5 What happens in meiosis? 18. 149 – 1 What is the cell cycle?
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